1 Answer
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Well I think this was a hard question, anyway I found a way to intercept a message, this can be applied on any WCF service, you can use the same in the future.

1) create a class library and sign it with strong key.
2)create RoutingServiceBehavior class this class will implement IServiceBehavior, IDispatchMessageInspector interfaces, the code for message interception will be in this class: